ML20207P907

Rev 1 to Support Design General: `A' Series Drawings & 050 Notes, Element Rept

ML20207P907
Person / Time
Site:	Sequoyah
Issue date:	01/08/1987
From:	Russell J TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20207P893	List: ML20207P892 ML20207P895 ML20207P900 ML20207P903 ML20207P907 ML20207P910 ML20207P913 ML20207P916 ML20207P922 ML20207P926
References
220.1-(B), 220.1-(B)-R01, 220.1-(B)-R1, NUDOCS 8701200393
Download: ML20207P907 (10)

Text

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TVA EMPLOYEE CONCERNS REPORT NUMER: 220.1 (B)

SP ECI AL PROGR AM REPOPT TYPE: SEQUO)AH ELEMENT REVISION NUSER: 1 TITLF: SUPPORT DESIGN GENERAL

' A' Series Drawings and 050 Notes PAGE 10F 9 REASON FOR REVISION:

1. To incorporate comments by SRP, TAS and TVA, to include TVA's corrective action plan infomation (see Section 10), and to comply with current fomat.

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0- / /~k' N/A ECSP MANAGER DATE MANAGER OF NUCLEAR POWER DATE CONCURRENCE (FINAL REPORT ONLY)

• SRP Secretary's signature denotes SRP concurrences are in files.

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TVA EMPLOYEE CONCERNS R EPORT NUM ER: 220.1 (B)

SPECIAL PROGRAM REVISION NUMER: 1

' PAGE 2 0F 9 1 CHARACTERIZATION OF ISSUE (S):

Concern: Issues:

T H-85-074 -001 a. 47A050 notes are contradictory to ' A'

'" A' series hanger drawings and series hanger dr6 wings. They allow 050 notes are contradictory and hangers, box anchors, and structural allow hangers or box anchors or shapes to be accepted even though they structural features to be accept- do not confonn to the design requirements.

able, even when they do not confonn to the requirements of b. 47A050 notes are written in such a way drawing details. The 050 series that they can be misinterpreted.

notes are misinterpreted by all those who utilize them." c. There are discrepancies between 47A050 notes and other installation doctments.

7. HAVE ISSUES BEEN IDENTIFIED IN ANOTHER SYSTEMATIC ANALYSIS? YES NO X Identified by Not Applicable x Date Not Applicable Doctanentation Identifiers:

None

3. DOCUMENT NOS., TAG NOS., LOCATIONS, OR OTHER SPECIFIC DESCRIPTIVE IDENTIFICATIONS STATED IN ELEMENT:

' A' Series Hanger Drawings 050 Notes

d. INTERVIEW FILES REVIEWED:

Review of interview files for concern IN-85-024-001 shows the following infonnation:

o &nployee Concern Assignment Request o File Screening sheet o Generic Applicability Detennination Change Request o Memo fron Whitt (NSRS) to Cottle (WBN site director) reiecting report No, I-85-110-WBN (01/17/86) (This

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infonnation is not applicable to element 220.1) 0109D (1?/15/86)

r-TVA EMPLOYEE CONCERNS REPORT NUteER: 220.1 (B)

SP ECI AL PROGRAM REVISION NUMBER: 1 PME 3 0F 9

5. DOCUMENTS REVIEWED RELATED TO THE ELEMENT:

See Appendix A.

6 WHAT REGULATIONS, LICENSING COMMITMENTS, DESIGN REQUIREMENTS, OR OTHER APPLY OR CONTROL IN THIS AREA?

See Appendix A.

7. LIST RE00ESTS FOR INFORMATION, MEETINGS, TELEPHONE CALLS, AND OTHER DISCUSSIONS RELATED TO ELEMENT.

See Appendix A.

P. EVALUATION PROCESS:

a. Reviewed 47A050 notes and established if these notes were l contradictory to hanger drawings and other insta11atter, documents,

b. Reviewed 47A050 notes to determine if they can be l mi sinte rprete d.

o. DISCUSSION, FINDINGS, AND CONCLUSIONS:

Chronology:

08/20/76: General construction specificaticn G-43, Rev. O, issued 1977-86: 47A050 notes issued 17/13/79: Modification and additions instruction M&AI-11, Rev.1, issued 05/13/05: TVA receives the employee concern.

08/08/86: TVA memo from W. C. Drotleff to Those Listed,

Subject:

" Specification Improvement Plan," R1 10/0P/P6: TVA memo from J. A. Kirkebo to J. E. Huston,

Subject:

" Revision to Specification Improvement Plan" i

4 01000 (1?/15/P6)

1 REPORT NINER: 220.1 (B)

TVA EMPLOYEE CONCERNS SPECIAL PROGRAM REVISION NLMER: 1 PAGE 4 0F 9 Discussion:

' A' series drawings are unique detail drawings for " engineered" pipe supports. These drawings contain the design configuration, support location, and bill of materials for the support components. ' A' series drawings are issued to Construction for fabrication / installation of the pipe supports.

For several reasons, such as interference with other plant features, nonavailability of required material, lack of access to perfonn a specified weld, etc., it may become necessary during construction to modify / change the original design configuration.

To expedite the fabrication / installation process, Engineering furnishes Construction with tolerances for support location, member dimensions, material substitution, etc. If a pipe support design is modified within these tolerances, engineering approval is not requi red. Thus, a considerable amount of time is saved during the fabrication / installation phase by not requiring the engineering approval cycle on a case-by-case basis. This tolerance infomation and other guidance are provided through the 47A050 notes

( App. A, 5.a) and other installation documents ( App. A, 5.c and i 5.d).

As discussed above, the 47A050 notes containing tolerance infomation supplement the basic design infomation of the ' A' series drawings and, therefore, do not represent a conflict. To verify this, the evaluation team selected a sample ( App. A, 5.b) of

' A' series drawings to compare against the 47A050 notes ( App. A, 5.a). This sample included box type anchors along with other types of pipe supports.

This review revealed no conflict or contradiction between ' A' series hanger drawings and 47A050 notes.

47A050 notes were reviewed to detemine if they can be mi sin terpreted. These notes were found to be concise, clear, and easy to interpret.

The review also examined pipe support installation specification G-43 and instructions M&AI-11 and 47A050 for Sequoyah (SQN) l (App. A, 5.a, 5.c, and 5.d). These documents were reviewed to verify the validity of the concern. The following differences were l noted:

0100D (17/15/86)

r TVA EMPLOYEE CONCERNS R EPORT NUMB ER: 220.1 (B)

SP ECI AL PROGRAM REVISION NUMB ER: 1 PAGE 5 0F 9 Speci fication Modification and Additions 47A050 Notes G-43 In structions M&Al-11

a. Paragraph ?.6 provides loca- Paragraph 2.0 of Attachment Do not provide tion tolerances with additional "C" specifies the same loca- hanger location reouirements of adjacent run tion tolerances, without any tolerances.

from valve, branch connection, adjacent run requirements.

etc.

b, paragraph 2.6 allows loca- Paragraph 7.4.1 does not Do not provide tion tolerances for pipe specify any location toler- hanger location larger than 2-inch diameter, ances for pipe larger than tolerances.

2-inch diameter. Supports should be installed in accord-ance with EN DES approved drawing s.

c. Paragraph 2.6.1.3 allows Paragraph 2.b of Attachment Do not provide axial supports for adjacent "C" allows from one-half pipe hanger location runs to be relocated 2 diameter to a maximLm of 6 tolerances.

nominal pipo diameters from inches from the position tFe position specified by the specified by the analysis, analysis, not to exceed a naximum of 6 inches.

This review identified instances where different tolerances are specified for the same components; thus, leading to possible mi sin terpre tation. However, there are ways, such as field change request (FCP), of communication between Construction and Engineering, whereby such conflicting infonnation can be clarified without altering the design intent.

It is the opinion of the evaluation team that the above examples of conflicting information between the pipe support installation documents are isolated cases. The conflicts are not sufficient to create an unsafe design nor do they lessen the credibility of the installation documents. In two out of three cases, the l%Al-11 is more restrictive than the construction specification G-43.

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i 010PD (1?/15/86) t

TVA EMPLOYEE C0tiCERNS REPORT NMO: 220.1 (B)

SPECIAL PROGRAM REVISION NMER: 1 PAGE 6 0F 9 The program " Specification Improvement Plan" by TVA per App. A, 5.c I and 5.f recognizes these differences and directs all projects to prepare a single construction specification applicable to their individual projects. The engineering branches are now reviewing Modification and Additions Instructions (M8Als) to ensure appropriate engineering requirements are included. M8AI-11 and construction specification G-43 are part of this review ( App. A, 7 9).

Findinas:

a. ' A' series drawings and 47A050 notes do not conflict with each other in any respect nor is there any conflict between 47A050 notes and other installation docunents,

b. 47A050 notes are easy to interpret,

c. Installation docunents G-43 and M&AI-11 have some differences I l in specifying tolerances for certain components.

Concl usions:

a. The concern that ' A' series drawings and 050 notes are contradictory is not valid.

b. The concern about possible misinterpretation of 47A050 notes is not valid,

c. The concern about some conflicting requirements in construction docurents is valid; however, the M&AI-11, which is the instruction to be used in an operating plant, is generally more restrictive than the general specificatien G-43; therefore, there are no safety implications.

10 CORRECTIVE ACTION: .

In its corrective action plan (CAP) ( App. A, 5.g), TVA is currently reviewing Modification and Additions Instructions (M8Als) under the specification improvement plan. MSAI-11 and Construction Specificatin G-43 are included in this review. The differences between MLAI-11 and G-43 will be reconciled ( App. A, 7.h). The evaluation team concurs with this CAP.

t 0100p (12/15/86)

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TVA EMPLOYEE CONCERNS REPORT NUNIO: 220.1 (B)

SPECIAL PROGRAM REVISION NUMBER: 1 PAGE 7 0F 9 APPENDIX A

5. DOCUMENTS REVIEWED RE1.ATED TO THE ELEMENT:

a. 47A050 series drawings (050 notes):

477050-1/R2 through 7 47A050-14/R1 47A050-1A/R0 47A050-15/R1 47A050-2/R0 through 6 47A050-16/R1 47A050-2A/R0 and 1 47A050-16A/R1 47A050-28/R0 47A050-17/R0 d7A050-3/R2 through 6 47A050-18/R0 47A050-4/R5 47A050-19/R0 47A050-5/R 47A050-19A/R0 47A050-6/R8 47A050-19B/R0 47A050-6A/R1 47A050-20/R0 47A050-6B/R0 47A050-21/R0 47A050-7/RO,1, 3 through 6 47A050-22/R0 47A050-8/R0 47A050-23/R0 47A050-9/R6 47A050-23A/R0 47A050-10/R0 47A050-11/R1 47A050-12/R1 47A050-13/R1

b. Pipe support drawings:

1-MSH-165/R4 2-CSH-14/R906 1-MSM-300/R905 1-FPCH-527/R2 1-AFDH-369/R906 1-RCH-136/R4 1 -FDH-45/R1 1 -SIH-365/R2 2-VHIH-144 /R902 1 -CH -78/R2 2-SGBH-70/R1 2-CVCH-614/R904 2-CCH-372/R2 2-CVCH-813/R0 1-CSH-44/R904

c. General Construction Specification No. G-43, for support and installation of piping systems in Category 1 structures, Rev. 8, (08/08/85)

d. Modification and Additions Instruction, M&AI-11 for fabrication, installation, and documentation of seismic supports and supports attached to seismic Category 1 strectures, Rev. 12, (03/14/86)

c. TVA nemo from W. C. Orotleff to Those Listed,

Subject:

"Speci fication Improvement Plan," (Rev. 1) (005 860808 001)

(08/08/P6) 01000 (12/15/86)

TVA EMPLOYEE CONCERNS REPORT NUPED: 220.1 (B)

SPECIAL PROGRAM REVISION NUpBER: 1 PAGE 8 0F 9 APPENDIX A (cont'd)

f. TVA memo from J. A. Kirkebo to J. E. Huston,

Subject:

" Revision to Specification Improvement Plan" (B80861008001)

(10/08/86)

g. TCAD-015, Corrective Action Plan (CAP) for Element 220.1(B),

(11/26/86) 6 WAT RFGULATIONS, LICENSING COMITMENTS, DESIGN REQUIREMENTS OR OTHER APPLY OR CONTROL IN THIS AREA 7

a. 47A050 sortes drawings

b. General Construction Specification No. G-43, for support and installation of piping systems in Category 1 structures, Rev.

> 8,(08/08/85)

c. Modification and Additions Instruction, M&Al-11 for fabrication, installation, and docinentation of seismic

( supports and supports attached to seismic Category 1 structures, Rev. 12 (03/14/86) 7 _ LIST REOUESTS FOR INFORMATION, MEETINGS, TELEPHONE CALLS, AND OTHER DISCUSSIONS RELATED TO ELEMENT.

a. RFI #SQN-549, (09/07/86)

b. RFI #SOH-607, (10/0?/86)

c. RFI # SOP-615, (10/03/86)

d. RFI #50H-629, (10/13/86)

e. RFI # SON-639, (10/16/86)

f. RFI #50N-640, (10/16/86)

g. RFI # SON-644, (10/17/86)

h. Telecen between S. Chitnis, Bechtel, and N. A. Liakonis, S.

Cook, and G. McNutt, TVA,

Subject:

"TVA Corrective Action Plan TCAB-015," (12/15/J6) 01000 (1?/15/P6)

,..l, TVA EMPLOYFE CONCENS REPORT 1R980: 220.1 (B)

SPECIAL PROGRAM REVISION NUp5ER: 1

[ PAGE 9 0F 9 CATD LIST The following CATO identifies and provides corrective action for the findings included in this report:

220 01 SQN 01 (11/24/86) 4 01090 (1?/15/U)

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REFERENCE - ECPS12SJ-ECPSI21C TENNESSEE VALLEY AUTHORITY PAGE -

91 TREQUENCY - REGUEST OFFICE OF NUCLEAR POWER RUN TIME - 12:57:19.

• RUN DATE - 12/02/86 CP - ISSS - R m EMPLOYEE CONCERN PROGRAM SYSTEM (ECPS)

LIST OF EMPLOYEE CONCERN INFORMATION CATEGORY: EN DES PROCESS & OUTPUT SU8 CATEGORY: 22301 A SERIES PNJR BRANINGS AND 8-58 NOTES S GENERIC KEYNORD A N APPL STC/MSRS P KEYHORD R CCNCERN SUB R PLT 13SN INVESTIGATION S CONCERN REYNORD C E12tBER CAT CAT D LOC FL9R REPORT R DESCRIPTION KEYNORD D i IX 824-301 EM 22501 N MSN NNYY I-ES-IIO-NEN SR *A" SERIES MANGER DRANINGS AND 058 N DESIGN PROCESS' l T50332 REPORT OTES ARE CONTRADICTORY AND ALLON HAN DRANINGS

GERS OR DOX ANCNORS OR STRUCTURAL FE CONSTRUCTION 3 ATURES TO BE ACCEPTABLE, EVEN NMEN T MANGERS l

HEY DO NOT CONFORM TO 1HE REOUIREMEN TS OF DRANING DETAILS. THE 850 SERI ES NOTES ARE MISINTERPRETED BY ALL T I NOSE 200 UTILIZE THEM 1 CC30 ERNS FOR CATEGORY EN SU3 CATEGORY 22831 l }

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